Whatever the rule changes are to challenges this year, it’s a huge improvement. 2014, with the managers waddling out to the umpires and standing around waiting for a signal from the dugout, and seemingly for every other play, was just painful.

If you let Teheran eat innings the first few months and stick with the plan to provide an extra day of rest whenever possible, you're less likely to end up in a position where you may need to limit the younger arms down the stretch